Brian Donlevy

as (in "The Glass Key") (archive footage)

as Prof. Bernard Quatermass

as Kent

as Joe McClure

as Assistant D.A. Louis D'Angelo

as Prof. Bernard Quatermass

as Dr. Franticek Svoboda

as General Roger Brandon

as Paul Madvig

as Governor McGinty

as Barshee

as Sergeant Markoff

as Henri Delambre

as Sid Campeau

as Daniel 'Dan' McGinty

as Doc Bender, Trailhand

as Gen. Sloan

as George Camrose

as Walter Williams

as Tom 'T.P.' Paramutual

as Movie Actor (uncredited)

as Gil Warren

as Jed Reston

as Knuckles Jacoby

as Gen. Terry Arnold

as Ralph Callendar

as Maj. Geoffrey Caton

as Grant Willard

as Trampas

as B.D. 'Big Deal' MacPherson

as Jim Sherwood

as Brigadier General Clifton I. Garnet

as Nick Palmer

as Quantrill

as Charles Quantrill

as Grat Dalton

as Dragon #3

as Ed Bates

as Batiste Duryea

as Angus Duncan

as Lieut. Cmdr. Martin Roberts

as George Wellington

as Sen. William J. 'Bill' Stephens

as Maj. Gen. Leslie R. Groves

as Ace Martin

as Self

as Jim

as Memphis

as Steely Edwards

as Sam Marvin

as Stefan Dubechek aka Steve Dangos

as Richard Henry Dana

as Fred Childress

as Capt. Mercer

as Ace Ross

as Vance

as Marshal Willett

as James Evarts

as unknown

as Brian Donlevy

as Narrator (English version)

as Col. Sherman Harrington

as Kurt Devlynn

as Bob Kane

as Professor Bernard Quatermass (archive footage)

as Dan Carmody

as Frank Evers

as Jim Caighn

as Adam 'Duke' Byron

as Capt. Dempster

as Chesty Webb

as John J. Malone

as Steve Reardon

as Mayor Joe Smith

as Kurt Devlynne in 'A Southern Yankee' (arch. foot.) (uncredited)

as Archival Footage

as Harry Melton

as Broken Nose Dawson / Spencer Dutro III

as Capt. Vladimir Gregorovitch

as Yankee Gordon

as Vince Barrows

as Charlie the Chauffeur

as Constable Dale

as General Andrew Jackson

as Charles 'Chick' Gardner

as Bide Marriner

as Steve Marshall

as Daniel Shane

as John Ridges

as Self (archive footage)

as Dr. Roy Bell

as George Manton

as Cmdr. McFarland

as Self (archive footage)

as Tony Minnetti

as Kelly - Reporter (uncredited)

as Detective Lee

as Packy Campbell

as Duffy Giles

as Joe McBride

as Bob

as (archive footage)

as Self (archive footage)

as Spike

as Agent Norman Craig / Red Murray

as Jim Porter

as Bronc Grierson

as Minor Role (Uncredited)

as Ralph

as Steve Mitchell

as Harry O'Day